Australian 4WD Action – July 2019

Y

our 4WDs

differentials have an

extremely hard life.

Not only do they miss

out on the luxury of

warming up before you start

driving like your engine does,

but they also cop every boghole

and water crossing you point

your vehicle at. Not to mention

servicing of them is sometimes

overlooked, and when you

combine that with fitting larger

tyres, its no wonder some diffs

just don’t last!

Fitting bigger rubber is one

of the first mods most of us do

to our 4WDs. Larger off-road

tyres give you greater traction,

ground clearance and puncture

resistance in the bush. But

have you ever noticed that

fitting larger tyres makes your

engine work way harder when

you’re punching up the highway

to your favourite track? That is

caused by your diff ratios not

being suited to your new tyres.

This issue, we’re going to

take a closer look at the inner

workings on your diffs, how they

affect vehicle operation and

performance, the importance of

running the right gear ratios

and how to bush-proof your

diffs once and for all.

YOU^ NEE

D^ TO^ KN

OW^ ABO

UT

EVER

YTHI

NG

Here’s how to set your

diffs up to last!

WORDS AND PHOTOGRAPHY BY 4WD ACTION

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